1121525204 has 24 divisors (see below), whose sum is σ = 2018106888. Its totient is φ = 544959360.

The previous prime is 1121525201. The next prime is 1121525231. The reversal of 1121525204 is 4025251211.

It can be written as a sum of positive squares in 4 ways, for example, as 606144400 + 515380804 = 24620^2 + 22702^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1121525204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121525201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135242 + ... + 143294.

It is an arithmetic number, because the mean of its divisors is an integer number (84087787).

Almost surely, 2^1121525204 is an apocalyptic number.

It is an amenable number.

1121525204 is a deficient number, since it is larger than the sum of its proper divisors (896581684).

1121525204 is a wasteful number, since it uses less digits than its factorization.

1121525204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9035 (or 9033 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1121525204 is about 33489.1804020343. The cubic root of 1121525204 is about 1038.9700120692.

Adding to 1121525204 its reverse (4025251211), we get a palindrome (5146776415).

The spelling of 1121525204 in words is "one billion, one hundred twenty-one million, five hundred twenty-five thousand, two hundred four".